a vial or small glass bottle for holding vinegar, oil, pepper, or the like, for the table; a caster
A cruet is a small glass bottle that contains oil or vinegar and is used at the table at meals. a thing that holds the containers for salt, pepper, oil, or vinegar on a table (crue )
A cruet is a small container, or set of containers, for salt, pepper, or mustard which is used at meals. a cruet set
The cruet consists of salt and pepper (usually ground white pepper) Traditionally, the cruet should also include English mustard these are not considered accompaniments and are removed from the table after the main course has been cleared